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Welcome to Chris Bennett's and Lis Pedersen's web site. If you are looking for information Chris' current work on affordable housing, please visit www.mygbhousing.info. The video below tells the background to Chris' project.


2017 - Australia - Effect of Climate Change on Road Infrastructure


2017 - Australia - Effect of Climate Change on Road Infrastructure

There is an increasing evidence that the earth’s climate is changing with some of the changes attributable to transport infrastructure. Climate change can have impacts on road infrastructure. The direct impacts can be due to the effects of environment. Temperature can affect the aging of bitumen resulting in an increase in brittle failure of the surface seals that represent more than 90% of the rural sealed roads in Australia. Further, rainfall changes can alter moisture balances and influence pavement deterioration. Brittle failure of the bitumen causes the surface to crack, with a consequent loss of waterproofing of the surface seal. The result is that surface water will enter the pavement causing potholing and will cause rapid loss of surface condition. More frequent reseal treatments will overcome the problem, but this is at a higher cost to road agencies. Road infrastructure is a long-lived investment.  An understanding of the expected impacts of future climate change by road designers, asset managers and planners, could produce considerable cost savings in the long term. This research aims to provide an assessment of likely effects on climate change for South East Queensland region in the next 90 years, and further identify and assess the likely effects of climate change on road pavement. It can be concluded that, climate change in South East Queensland does play a role in lower deterioration rates. The findings suggest that decreasing rainfall (decreasing TMI) will slow flexible pavement deterioration. However, increases in temperature are likely to cause materials to expand to affect pavement deterioration rates.

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Created Date: 25-06-2019
Last Updated Date: 26-03-2018


Chris in the NCT Race 

Chris has an adventurous spirit which generally involves cycling, running, or just being out there having a good time. Read his 'Race Reports' below. This is a link to his SPOT GPS tracker. If you are interested in his 'geeky' sport technical blog it is at www.tri-duffer.com. He also has stories of his life as 'An Overtravelled Engineer Working for the World Bank' at World Bank Traveller.


Race Reports


Document Library


  • Chris' published papers and reports are here.
  • His Technical Library  has a range of reports 
  • Golden Bay community projects are here.
  • The history of the ROMDAS company is here.
  • The 'Road to Good Health' HIV/AIDs Toolkit is here.


Technical Library

Chris and Lis

Chris and Lis

We are Lis Pedersen and Chris Bennett. We’ve been married over 30 years and each found our way to New Zealand in the early 1980s from Denmark and Canada respectively. Golden Bay has been our happy place for almost 20 years and we are now based in Pohara just above the beach, with our two cats Coco and Max. 




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